Commit Graph

873 Commits

Author SHA1 Message Date
David S. Miller e69fbf31ca wireless-drivers-next patches for 4.21
Last set of patches for 4.21. mt76 is still in very active development
 and having some refactoring as well as new features. But also other
 drivers got few new features and fixes.
 
 Major changes:
 
 ath10k
 
 * add amsdu support for QCA6174 monitor mode
 
 * report tx rate using the new ieee80211_tx_rate_update() API
 
 * wcn3990 support is not experimental anymore
 
 iwlwifi
 
 * support for FW version 43 for 9000 and 22000 series
 
 brcmfmac
 
 * add support for CYW43012 SDIO chipset
 
 * add the raw 4354 PCIe device ID for unprogrammed Cypress boards
 
 mwifiex
 
 * add NL80211_STA_INFO_RX_BITRATE support
 
 mt76
 
 * use the same firmware for mt76x2e and mt76x2u
 
 * mt76x0e survey support
 
 * more unification between mt76x2 and mt76x0
 
 * mt76x0e AP mode support
 
 * mt76x0e DFS support
 
 * rework and fix tx status handling for mt76x0 and mt76x2
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Merge tag 'wireless-drivers-next-for-davem-2018-12-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.21

Last set of patches for 4.21. mt76 is still in very active development
and having some refactoring as well as new features. But also other
drivers got few new features and fixes.

Major changes:

ath10k

* add amsdu support for QCA6174 monitor mode

* report tx rate using the new ieee80211_tx_rate_update() API

* wcn3990 support is not experimental anymore

iwlwifi

* support for FW version 43 for 9000 and 22000 series

brcmfmac

* add support for CYW43012 SDIO chipset

* add the raw 4354 PCIe device ID for unprogrammed Cypress boards

mwifiex

* add NL80211_STA_INFO_RX_BITRATE support

mt76

* use the same firmware for mt76x2e and mt76x2u

* mt76x0e survey support

* more unification between mt76x2 and mt76x0

* mt76x0e AP mode support

* mt76x0e DFS support

* rework and fix tx status handling for mt76x0 and mt76x2
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20 16:47:10 -08:00
David S. Miller 2be09de7d6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Lots of conflicts, by happily all cases of overlapping
changes, parallel adds, things of that nature.

Thanks to Stephen Rothwell, Saeed Mahameed, and others
for their guidance in these resolutions.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-20 11:53:36 -08:00
YueHaibing e3e454b704 rtlwifi: rtl8821ae: remove set but not used variable 'type' in translate_rx_signal_stuff
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c: In function 'translate_rx_signal_stuff':
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/trx.c:309:6: warning:
 variable 'type' set but not used [-Wunused-but-set-variable]

It never used since commit 21e4b0726d ("rtlwifi: rtl8821ae: Move driver from
staging to regular tree")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-12-13 17:04:09 +02:00
Pan Bian afbb1947db rtl818x: fix potential use after free
entry is released via usb_put_urb just after calling usb_submit_urb.
However, entry is used if the submission fails, resulting in a use after
free bug. The patch fixes this.

Signed-off-by: Pan Bian <bianpan2016@163.com>
ACKed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-12-13 17:03:06 +02:00
Larry Finger 8cfa272b0d rtlwifi: Fix leak of skb when processing C2H_BT_INFO
With commit 0a9f8f0a1b ("rtlwifi: fix btmpinfo timeout while processing
C2H_BT_INFO"), calling rtl_c2hcmd_enqueue() with rtl_c2h_fast_cmd() true,
the routine returns without freeing that skb, thereby leaking it.

This issue has been discussed at https://github.com/lwfinger/rtlwifi_new/issues/401
and the fix tested there.

Fixes: 0a9f8f0a1b ("rtlwifi: fix btmpinfo timeout while processing C2H_BT_INFO")
Reported-and-tested-by: Francisco Machado Magalhães Neto <franmagneto@gmail.com>
Cc: Francisco Machado Magalhães Neto <franmagneto@gmail.com>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Stable <stable@vger.kernel.org> # 4.18+
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-12-13 15:35:07 +02:00
Shaokun Zhang 7d129adff3 rtlwifi: rtl8192de: Fix misleading REG_MCUFWDL information
RT_TRACE shows REG_MCUFWDL value as a decimal value with a '0x'
prefix, which is somewhat misleading.

Fix it to print hexadecimal, as was intended.

Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 19:05:00 +02:00
zhong jiang 963b307361 rtlwifi: Remove same duplicated includes
Just remove same duplicated includes.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 19:01:52 +02:00
zhong jiang 90e3243d16 rtlwifi: rtl8723ae: Remove set but not used variables and #defines
radiob_array_table' and 'radiob_arraylen' are not used after setting its value.
It is safe to remove the unused variable. Meanwhile, radio B array should be
removed as well. because it will no longer be referenced.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 19:01:26 +02:00
Gustavo A. R. Silva 89e54fa456 rtlwifi: rtl8821ae: phy: Mark expected switch fall-through
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 19:00:04 +02:00
Gustavo A. R. Silva 307b00c5e6 rtl8xxxu: Fix missing break in switch
Add missing break statement in order to prevent the code from falling
through to the default case.

Fixes: 26f1fad29a ("New driver: rtl8xxxu (mac80211)")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 18:58:41 +02:00
Gustavo A. R. Silva e20c50cdca rtl8xxxu: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1357355 ("Missing break in switch")
Addresses-Coverity-ID: 1357378 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 18:58:40 +02:00
YueHaibing 9198f460ec rtlwifi: btcoex: remove set but not used variable 'ppsc'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c: In function 'halbtc_leave_lps':
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:295:21: warning:
 variable 'ppsc' set but not used [-Wunused-but-set-variable]

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c: In function 'halbtc_enter_lps':
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:318:21: warning:
 variable 'ppsc' set but not used [-Wunused-but-set-variable]

It never used since introduction in
commit aa45a673b2 ("rtlwifi: btcoexist: Add new mini driver")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-11-06 18:58:07 +02:00
YueHaibing 03ce6f8a67 rtl8xxxu: Remove set but not used variables 'usedesc40' and 'seq_number'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c: In function 'rtl8xxxu_tx':
drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:4925:7: warning:
 variable 'usedesc40' set but not used [-Wunused-but-set-variable]

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:4921:6: warning:
 variable 'seq_number' set but not used [-Wunused-but-set-variable]

'usedesc40' and 'seq_number' are not used any more after
commit b59415c2dd ("rtl8xxxu: Split filling of TX descriptors into separate functions")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-10-13 20:05:26 +03:00
Colin Ian King c894696188 rtlwifi: rtl8821ae: replace _rtl8821ae_mrate_idx_to_arfr_id with generic version
Function _rtl8821ae_mrate_idx_to_arfr_id is functionally identical to
the generic version rtl_mrate_idx_to_arfr_id, so remove
_rtl8821ae_mrate_idx_to_arfr_id and use the generic one instead.

This also fixes a missing break statement found by CoverityScan in
_rtl8821ae_mrate_idx_to_arfr_id, namely: CID#1167237 ("Missing break
in switch")

Thanks to Joe Perches for spotting this when I submitted an earlier patch.

Fixes: 3c05bedb5f ("Staging: rtl8812ae: Add Realtek 8821 PCI WIFI driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
ACKed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-10-13 15:00:37 +03:00
Ping-Ke Shih 9c22211e1d rtlwifi: Removed unused define and code efuse_re_pg* from wifi.h
The following:
 bool efuse_re_pg_sec1flag;
 u8 efuse_re_pg_data[8];
are not referenced anywhere in the rtlwifi code.

This patch is originally created by Rick Veens <rickveens92@gmail.com>,
and Joe Perches <joe@perches.com> reminded to apply it to rtlwifi.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-10-05 11:31:52 +03:00
David S. Miller d793fb4682 wireless-drivers-next patches for 4.20
First set of new features for 4.20. mt76 driver is going through major
 refactoring and that's why there are so many mt76 patches. iwlwifi is
 also under heavy development and smaller changes to other drivers.
 
 Also wireless-drivers was merged to fix a conflict between the two trees.
 
 Major changes:
 
 ath10k
 
 * limit available channels via DT ieee80211-freq-limit
 
 wil6210
 
 * add 802.11r Fast Roaming support for AP and station modes
 
 * add support for channel 4
 
 iwlwifi
 
 * new FW API handling
 
 * some improvements in the PCI recovery mechanism
 
 * enable a new scanning feature;
 
 * continued work on HE (mostly radiotap)
 
 * TKIP implementation in new devices
 
 * work continues for new 22560 hardware
 
 mt76
 
 * add support for Alfa AWUS036ACM
 
 * lots of refactoring to make it easier to add new hardware support
 
 * prepare for adding mt76x0e (pci-e variant) support
 
 * add CONFIG_MT76x0E kconfig symbol
 
 brcmfmac
 
 * add support CYW89342 mini-PCIe device
 
 * add 4-way handshake offload detection for FT-802.1X
 
 * enable NL80211_EXT_FEATURE_CQM_RSSI_LIST
 
 * fix for proper support of 160MHz bandwidth
 
 rtl8xxxu
 
 * add rtl8188ctv support
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Merge tag 'wireless-drivers-next-for-davem-2018-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.20

First set of new features for 4.20. mt76 driver is going through major
refactoring and that's why there are so many mt76 patches. iwlwifi is
also under heavy development and smaller changes to other drivers.

Also wireless-drivers was merged to fix a conflict between the two trees.

Major changes:

ath10k

* limit available channels via DT ieee80211-freq-limit

wil6210

* add 802.11r Fast Roaming support for AP and station modes

* add support for channel 4

iwlwifi

* new FW API handling

* some improvements in the PCI recovery mechanism

* enable a new scanning feature;

* continued work on HE (mostly radiotap)

* TKIP implementation in new devices

* work continues for new 22560 hardware

mt76

* add support for Alfa AWUS036ACM

* lots of refactoring to make it easier to add new hardware support

* prepare for adding mt76x0e (pci-e variant) support

* add CONFIG_MT76x0E kconfig symbol

brcmfmac

* add support CYW89342 mini-PCIe device

* add 4-way handshake offload detection for FT-802.1X

* enable NL80211_EXT_FEATURE_CQM_RSSI_LIST

* fix for proper support of 160MHz bandwidth

rtl8xxxu

* add rtl8188ctv support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-02 11:46:29 -07:00
Nathan Chancellor 31138a827d rtlwifi: btcoex: Use proper enumerated types for Wi-Fi only interface
Clang warns when one enumerated type is implicitly converted to another.

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:1327:34:
warning: implicit conversion from enumeration type 'enum
btc_chip_interface' to different enumeration type 'enum
wifionly_chip_interface' [-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_PCI;
                                             ~ ^~~~~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:1330:34:
warning: implicit conversion from enumeration type 'enum
btc_chip_interface' to different enumeration type 'enum
wifionly_chip_interface' [-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_USB;
                                             ~ ^~~~~~~~~~~~
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c:1333:34:
warning: implicit conversion from enumeration type 'enum
btc_chip_interface' to different enumeration type 'enum
wifionly_chip_interface' [-Wenum-conversion]
                wifionly_cfg->chip_interface = BTC_INTF_UNKNOWN;
                                             ~ ^~~~~~~~~~~~~~~~
3 warnings generated.

Use the values from the correct enumerated type, wifionly_chip_interface.

BTC_INTF_UNKNOWN = WIFIONLY_INTF_UNKNOWN = 0
BTC_INTF_PCI = WIFIONLY_INTF_PCI = 1
BTC_INTF_USB = WIFIONLY_INTF_USB = 2

Link: https://github.com/ClangBuiltLinux/linux/issues/135
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-10-01 18:36:51 +03:00
David S. Miller 8b9db0d0aa rtl818x: Remove SKB list assumptions.
Eliminate the assumption that SKBs and SKB list heads can
be cast to eachother in SKB list handling code.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-10 10:06:54 -07:00
Kevin Lo b9bcce366b rtlwifi: remove set but unused variables
Remove set but unused variables from _rtl88ee_hw_configure() and
_rtl8723e_hw_configure().

Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:17:43 +03:00
Aleksei Mamlin 514502c3a7 rtl8xxxu: Add rtl8188ctv support
The Realtek rtl8188ctv (0x0bda:0x018a) is a highly integrated single-chip
WLAN USB2.0 network interface controller.

Currently rtl8188ctv is supported by rtlwifi driver.
It is similar to the rtl8188cus(0x0bda:0x818a) and uses the same config.

Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-09-04 11:16:01 +03:00
Larry Finger 199ba9faca rtl8187: Fix warning generated when strncpy() destination length matches the sixe argument
In gcc8, when the 3rd argument (size) of a call to strncpy() matches the
length of the first argument, the compiler warns of the possibility of an
unterminated string. Using strlcpy() forces a null at the end.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-31 18:46:19 +03:00
YueHaibing ad2e6d23bd rtlwifi: btcoex: Fix if == else warnings in halbtc8723b2ant.c
Fix following coccinelle warning:

./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2952:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2961:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3011:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3020:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3439:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3448:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3339:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3348:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3074:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3083:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3192:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3201:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3267:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3276:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3124:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:3133:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2821:2-4: WARNING: possible condition with no effect (if == else)
./drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c:2830:2-4: WARNING: possible condition with no effect (if == else)

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-08-09 18:15:01 +03:00
Jia-Ju Bai 622e938240 rtl818x: Replace mdelay() with msleep() in rtl8225se_rf_init
rtl8225se_rf_init() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep().
This patch only replaces the mdelay() that has >20ms time to wait.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-07-31 10:26:46 +03:00
David S. Miller c4c5551df1 Merge ra.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux
All conflicts were trivial overlapping changes, so reasonably
easy to resolve.

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-20 21:17:12 -07:00
David S. Miller 8365da2c05 This round's updates:
* finally some of the promised HE code, but it turns
    out to be small - but everything kept changing, so
    one part I did in the driver was >30 patches for
    what was ultimately <200 lines of code ... similar
    here for this code.
  * improved scan privacy support - can now specify scan
    flags for randomizing the sequence number as well as
    reducing the probe request element content
  * rfkill cleanups
  * a timekeeping cleanup from Arnd
  * various other cleanups
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Merge tag 'mac80211-next-for-davem-2018-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Small merge conflict in net/mac80211/scan.c, I preserved
the kcalloc() conversion. -DaveM

Johannes Berg says:

====================
This round's updates:
 * finally some of the promised HE code, but it turns
   out to be small - but everything kept changing, so
   one part I did in the driver was >30 patches for
   what was ultimately <200 lines of code ... similar
   here for this code.
 * improved scan privacy support - can now specify scan
   flags for randomizing the sequence number as well as
   reducing the probe request element content
 * rfkill cleanups
 * a timekeeping cleanup from Arnd
 * various other cleanups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-30 21:08:12 +09:00
Ping-Ke Shih 9a98302de1 rtlwifi: rtl8821ae: fix firmware is not ready to run
Without this patch, firmware will not run properly on rtl8821ae, and it
causes bad user experience. For example, bad connection performance with
low rate, higher power consumption, and so on.

rtl8821ae uses two kinds of firmwares for normal and WoWlan cases, and
each firmware has firmware data buffer and size individually. Original
code always overwrite size of normal firmware rtlpriv->rtlhal.fwsize, and
this mismatch causes firmware checksum error, then firmware can't start.

In this situation, driver gives message "Firmware is not ready to run!".

Fixes: fe89707f0a ("rtlwifi: rtl8821ae: Simplify loading of WOWLAN firmware")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Cc: Stable <stable@vger.kernel.org> # 4.0+
Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-29 10:08:47 +03:00
Ping-Ke Shih 12dfa2f68a rtlwifi: Fix kernel Oops "Fw download fail!!"
When connecting to AP, mac80211 asks driver to enter and leave PS quickly,
but driver deinit doesn't wait for delayed work complete when entering PS,
then driver reinit procedure and delay work are running simultaneously.
This will cause unpredictable kernel oops or crash like

rtl8723be: error H2C cmd because of Fw download fail!!!
WARNING: CPU: 3 PID: 159 at drivers/net/wireless/realtek/rtlwifi/
	 rtl8723be/fw.c:227 rtl8723be_fill_h2c_cmd+0x182/0x510 [rtl8723be]
CPU: 3 PID: 159 Comm: kworker/3:2 Tainted: G       O     4.16.13-2-ARCH #1
Hardware name: ASUSTeK COMPUTER INC. X556UF/X556UF, BIOS X556UF.406
	       10/21/2016
Workqueue: rtl8723be_pci rtl_c2hcmd_wq_callback [rtlwifi]
RIP: 0010:rtl8723be_fill_h2c_cmd+0x182/0x510 [rtl8723be]
RSP: 0018:ffffa6ab01e1bd70 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffa26069071520 RCX: 0000000000000001
RDX: 0000000080000001 RSI: ffffffff8be70e9c RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000048 R09: 0000000000000348
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffffa26069071520 R14: 0000000000000000 R15: ffffa2607d205f70
FS:  0000000000000000(0000) GS:ffffa26081d80000(0000) knlGS:000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000443b39d3000 CR3: 000000037700a005 CR4: 00000000003606e0
Call Trace:
 ? halbtc_send_bt_mp_operation.constprop.17+0xd5/0xe0 [btcoexist]
 ? ex_btc8723b1ant_bt_info_notify+0x3b8/0x820 [btcoexist]
 ? rtl_c2hcmd_launcher+0xab/0x110 [rtlwifi]
 ? process_one_work+0x1d1/0x3b0
 ? worker_thread+0x2b/0x3d0
 ? process_one_work+0x3b0/0x3b0
 ? kthread+0x112/0x130
 ? kthread_create_on_node+0x60/0x60
 ? ret_from_fork+0x35/0x40
Code: 00 76 b4 e9 e2 fe ff ff 4c 89 ee 4c 89 e7 e8 56 22 86 ca e9 5e ...

This patch ensures all delayed works done before entering PS to satisfy
our expectation, so use cancel_delayed_work_sync() instead. An exception
is delayed work ips_nic_off_wq because running task may be itself, so add
a parameter ips_wq to deinit function to handle this case.

This issue is reported and fixed in below threads:
https://github.com/lwfinger/rtlwifi_new/issues/367
https://github.com/lwfinger/rtlwifi_new/issues/366

Tested-by: Evgeny Kapun <abacabadabacaba@gmail.com> # 8723DE
Tested-by: Shivam Kakkar <shivam543@gmail.com> # 8723BE on 4.18-rc1
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Fixes: cceb0a5973 ("rtlwifi: Add work queue for c2h cmd.")
Cc: Stable <stable@vger.kernel.org> # 4.11+
Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-06-24 19:54:21 +03:00
Johannes Berg b8042b3da9 ieee80211: bump IEEE80211_MAX_AMPDU_BUF to support HE
Bump the IEEE80211_MAX_AMPDU_BUF size to 0x100 for HE support
and - for now - use IEEE80211_MAX_AMPDU_BUF_HT everywhere.

This is derived from my internal patch, parts of which Luca
had sent upstream.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-06-18 22:39:39 +02:00
Kees Cook 6396bb2215 treewide: kzalloc() -> kcalloc()
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12 16:19:22 -07:00
David S. Miller f624434a0e wireless-drivers-next patches for 4.18
Hopefully the last pull request to 4.18 before the merge window.
 Nothing major here, we have smaller new features and of course a lots
 of fixes.
 
 Major changes:
 
 ath10k
 
 * add memory dump support for QCA9888 and QCA99X0
 
 * add support to configure channel dwell time
 
 * support new DFS host confirmation feature in the firmware
 
 ath
 
 * update various regulatory mappings
 
 wcn36xx
 
 * various fixes to improve reliability
 
 * add Factory Test Mode support
 
 brmfmac
 
 * add debugfs file for reading firmware capabilities
 
 mwifiex
 
 * support sysfs initiated device coredump
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Merge tag 'wireless-drivers-next-for-davem-2018-05-31' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.18

Hopefully the last pull request to 4.18 before the merge window.
Nothing major here, we have smaller new features and of course a lots
of fixes.

Major changes:

ath10k

* add memory dump support for QCA9888 and QCA99X0

* add support to configure channel dwell time

* support new DFS host confirmation feature in the firmware

ath

* update various regulatory mappings

wcn36xx

* various fixes to improve reliability

* add Factory Test Mode support

brmfmac

* add debugfs file for reading firmware capabilities

mwifiex

* support sysfs initiated device coredump
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-03 11:03:10 -04:00
Joe Perches d602de8e7e drivers/net: Fix various unnecessary characters after logging newlines
Remove and coalesce formats when there is an unnecessary
character after a logging newline.  These extra characters
cause logging defects.

Miscellanea:

o Coalesce formats

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-30 13:24:08 -04:00
Gustavo A. R. Silva 06895b1627 rtlwifi: remove duplicate code
Remove and refactor some code in order to avoid having identical code
for different branches.

Notice that the logic has been there since 2014.

Addresses-Coverity-ID: 1426199 ("Identical code for different branches")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:28:24 +03:00
Ping-Ke Shih 0a9f8f0a1b rtlwifi: fix btmpinfo timeout while processing C2H_BT_INFO
In former patch, I enqueu all C2H commands and processed by a workqueue.
In case C2H_BT_INFO will issue a H2C command to set BT reg, and wait for
a C2H ack. But it is totally impossible that C2H workqueue waits for a
C2H command, so kernel log warn
	rtlwifi: :<0> btmpinfo wait (req_num=0) timeout

Since the C2H ack command C2H_BT_MP can be safely processed in interrupt
context, add a fast command path to deal with the command.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:17:05 +03:00
Ping-Ke Shih 9644032e30 rtlwifi: access skb->data to get C2H data by macro
The format of C2H data is ID(1 byte) + Length(1 byte) + value, and it is
more readable to use macros to access C2H data.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:17:04 +03:00
Ping-Ke Shih 9ae6ed271a rtlwifi: use sk_buff to queue C2H commands
We use 'struct rtl_c2hcmd' to store C2H commands originally, and the code
is slightly complex to enqueue and dequeue and also wastes time to
allocate and memcpy data. Since C2H commands are asynchronous events,
they can be processed in work queue, so RX ISR enqueues C2H result in
removal of rtl_c2h_packet_handler().

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:17:03 +03:00
Ping-Ke Shih b4f6ee489c rtlwifi: remove hal_op c2h_content_parsing
Similar to rx_command_packet, we can call rtl_c2h_content_parsing so the
hal_op isn't necessary.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:17:02 +03:00
Ping-Ke Shih 23ffab177b rtlwifi: remove hal_op rx_command_packet
Because the hal_op rx_command_packet does C2H handler if rx packet type
is C2H, and the handler have been moved to base.c so we can call the
handler directly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:17:00 +03:00
Ping-Ke Shih daf026ae5f rtlwifi: remove duplicate C2H handler
Merge duplicate C2H handler and implement the handler in base.c.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:58 +03:00
Ping-Ke Shih 16cefa449c rtlwifi: Add hal_op c2h_ra_report_handler for special process
We're going to merge C2H handler into one, but one special case is to
handle RA_REPORT that implements in individual IC folder. So this commit
adds a hal_op for caller in common code.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:55 +03:00
Ping-Ke Shih ff77960d62 rtlwifi: remove dummy hal_op rx_command_packet from rtl8188ee and rtl8723ae
The caller of hal_op rx_command_packet will assert function pointer
before calling, so we can remove dummy functions safely.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:52 +03:00
Ping-Ke Shih 16e78cb4a5 rtlwifi: remove unused fw C2H command ID
The IDs are defined by driver and map to the fw C2H IDs, but they aren't
used now result in removal.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:47 +03:00
Ping-Ke Shih 7aeb100b7d rtlwifi: remove duplicate C2H definition
Move C2H definition to wifi.h, because the definitions of 8192ee, 8723be
and 8821ae are the same.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:43 +03:00
Ping-Ke Shih 249155973f rtlwifi: rename register-based C2H command IDs to V0
Current chips use packet-based C2H commands whose IDs differ from old
ones, so this commit simply gives C2H_V0_ as prefix of command IDs.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:42 +03:00
Ping-Ke Shih c4528686d0 rtlwifi: remove duplicate rx_packet_type definition
Move duplicate definitions from def.h of ic folder to wifi.h

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:42 +03:00
Ping-Ke Shih faa2800653 rtlwifi: remove CONNECTION_MONITOR flag
To use keep-alive mechanism in mac80211 stack, since driver supports
reporting accurate nullfunc frame tx ack now.

Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:41 +03:00
Tzu-En Huang 6acfbb81ab rtlwifi: support accurate nullfunc frame tx ack report
In order to realize the keep-alive mechanism in mac80211 stack, reporting
accurate tx ack status for nullfunc frame is added in this commit.

If current frame is nullfunc frame, we ask firmware to report by filling
TX report bit in TX descriptor. After this frame DMA done, TX interrupt is
triggered but TX status is unknown at this moment, so enqueue this skb
into tx_report->queue. Finally, C2H report will be received if the frame
is transmitted successfully or retried over, and then we report to mac80211
with IEEE80211_TX_STAT_ACK flag only if it's successful. Otherwise, if
failure or timeout (one second), we report to mac80211 without this flag.

Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-29 10:16:40 +03:00
Ping-Ke Shih bf516e7d8b rtlwifi: remove duplicate definition of antenna number for btcoex
Two enumerations bt_total_ant_num and bt_ant_num are identical, so one
can be removed.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-09 13:23:00 +03:00
Colin Ian King 070fc356e2 rtlwifi: fix spelling mistake: "dismatch" -> "mismatch"
Trivial fix to spelling mistake in RT_TRACE message text.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-05-04 15:36:04 +03:00
Kalle Valo 0ddcf3e76a Merge git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git
To fix a conflict reported by Stephen Rothwell <sfr@canb.auug.org.au>:

Today's linux-next merge of the wireless-drivers-next tree got a
conflict in:

  drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c

between commit:

  77e30e10ee ("iwlwifi: mvm: query regdb for wmm rule if needed")

from the wireless-drivers tree and commits:

  9c4f7d5127 ("iwlwifi: move all NVM parsing code to the common files")
  4c625c564b ("iwlwifi: get rid of fw/nvm.c")

from the wireless-drivers-next tree.
2018-04-26 13:26:37 +03:00
Ping-Ke Shih 8cf304a853 rtlwifi: btcoex: remove identical statements within if-else branches
Since the statements are identical, we can safely remove the statements.
The commit 42e74946f0 ("rtlwifi: btcoexist: Fix if == else warnings in
halbtc8821a1ant.c") had fixed the statements, but the commit c6821613e6
("rtlwifi: btcoex: follow linux coding style") that converted coding style
and upgraded btcoex didn't include the fix.

Reported-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-04-24 20:26:31 +03:00